Except for commercial farms as that term is defined in the “Right to Farm Act,” N.J.S.A. 4:1C-1 et seq., unless otherwise specifically permitted within this chapter, no more than one principal dwelling or principal building shall be permitted on one lot, and no more than one principal use shall be permitted on one lot.

No building shall hereafter be used, erected, altered, converted, enlarged, added to, moved or reduced, wholly or in part, nor shall any lands be designed, used or physically altered for any purpose or in any manner except in conformity with this chapter.